Caelum  0.6.4
Public Types | Public Member Functions | Static Public Attributes | Protected Member Functions | List of all members
Caelum::CaelumSystem Class Reference

This is the "root class" of caelum. More...

#include <CaelumSystem.h>

Inheritance diagram for Caelum::CaelumSystem:
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Public Types

enum  CaelumComponent {
  CAELUM_COMPONENT_SKY_DOME = 1 << 1 , CAELUM_COMPONENT_MOON = 1 << 3 , CAELUM_COMPONENT_SUN = 1 << 4 , CAELUM_COMPONENT_IMAGE_STARFIELD = 1 << 5 ,
  CAELUM_COMPONENT_POINT_STARFIELD = 1 << 6 , CAELUM_COMPONENT_CLOUDS = 1 << 7 , CAELUM_COMPONENT_PRECIPITATION = 1 << 8 , CAELUM_COMPONENT_SCREEN_SPACE_FOG = 1 << 9 ,
  CAELUM_COMPONENT_GROUND_FOG = 1 << (16 + 0) , CAELUM_COMPONENTS_NONE = 0 , CAELUM_COMPONENTS_DEFAULT , CAELUM_COMPONENTS_ALL
}
 Flags enumeration for caelum components. More...
 
typedef std::set< Ogre::Viewport * > AttachedViewportSet
 

Public Member Functions

 CaelumSystem (Ogre::Root *root, Ogre::SceneManager *sceneMgr, CaelumComponent componentsToCreate)
 Constructor. More...
 
void clear ()
 Revert everything to defaults. More...
 
void autoConfigure (CaelumComponent componentsToCreate)
 Create some default component with resonable default settings. More...
 
 ~CaelumSystem ()
 Destructor.
 
void shutdown (bool cleanup)
 Shuts down the system and detaches itself from the Ogre engine. More...
 
void updateSubcomponents (Real timeSinceLastFrame)
 Update the whole system manually. More...
 
void notifyCameraChanged (Ogre::Camera *cam)
 Notify subcomponents of camera changes. More...
 
Ogre::SceneManagergetSceneMgr () const
 Get the scene manager for this caelum system. More...
 
Ogre::SceneNodegetCaelumCameraNode (void) const
 Gets root scene node for camera-bound elements.
 
Ogre::SceneNodegetCaelumGroundNode (void) const
 Gets root scene node for ground-bound elements.
 
void setAutoNotifyCameraChanged (bool value)
 If true; listen to preViewportUpdate and automatically notifyCameraChanged();. More...
 
bool getAutoNotifyCameraChanged () const
 
void setAutoAttachViewportsToComponents (bool value)
 If true; automatically attach viewports to subcomponents. More...
 
bool getAutoAttachViewportsToComponents () const
 
void setAutoMoveCameraNode (bool value)
 If true (default); automatically move the camera node in notifyCameraChanged. More...
 
bool getAutoMoveCameraNode ()
 
void setAutoViewportBackground (bool value)
 If true; automatically set the viewport color to black. More...
 
bool getAutoViewportBackground () const
 
const Ogre::Degree getObserverLongitude () const
 Get the observer's longitude. East is positive, west is negative.
 
void setObserverLongitude (Ogre::Degree value)
 Set the observer's longitude. East is positive, west is negative.
 
const Ogre::Degree getObserverLatitude () const
 Get the observer's latitude. North is positive, south is negative.
 
void setObserverLatitude (Ogre::Degree value)
 Set the observer's latitude. North is positive, south is negative.
 
LongReal getJulianDay () const
 
void setJulianDay (LongReal value)
 
Real getTimeScale () const
 
void setTimeScale (Real value)
 
void attachViewport (Ogre::Viewport *rt)
 Attach CaelumSystem to a viewport. More...
 
void detachViewport (Ogre::Viewport *rt)
 Reverse of. More...
 
bool isViewportAttached (Ogre::Viewport *vp) const
 Check if one particular viewport is attached.
 
void detachAllViewports ()
 Detach from all viewports.
 
const AttachedViewportSet & _getAttachedViewportSet ()
 Get a reference to the set of attached viewports.
 
UniversalClockgetUniversalClock () const
 Gets the universal clock.
 
SkyDomegetSkyDome () const
 Get the current sky dome, or null if disabled.
 
void setSkyDome (SkyDome *obj)
 Set the skydome, or null to disable.
 
BaseSkyLightgetSun () const
 Gets the current sun, or null if disabled.
 
void setSun (BaseSkyLight *obj)
 Set the sun, or null to disable.
 
MoongetMoon () const
 Gets the current moon, or null if disabled.
 
void setMoon (Moon *obj)
 Set the moon, or null to disable.
 
ImageStarfieldgetImageStarfield () const
 Gets the current image starfield, or null if disabled.
 
void setImageStarfield (ImageStarfield *obj)
 Set image starfield, or null to disable.
 
PointStarfieldgetPointStarfield () const
 Gets the current point starfield, or null if disabled.
 
void setPointStarfield (PointStarfield *obj)
 Set image starfield, or null to disable.
 
GroundFoggetGroundFog ()
 Get ground fog; if enabled.
 
void setGroundFog (GroundFog *obj)
 Sets ground fog system, or null to disable.
 
CloudSystemgetCloudSystem ()
 Get cloud system; or null if disabled.
 
void setCloudSystem (CloudSystem *obj)
 Set cloud system; or null to disable.
 
PrecipitationControllergetPrecipitationController ()
 Get precipitation controller; or null if disabled.
 
void setPrecipitationController (PrecipitationController *obj)
 Set precipitation controller; or null to disable.
 
DepthComposergetDepthComposer ()
 Get depth composer; or null if disabled.
 
void setDepthComposer (DepthComposer *obj)
 Set depth composer; or null to disable.
 
void setManageSceneFog (Ogre::FogMode f)
 Enables/disables Caelum managing standard Ogre::Scene fog. More...
 
void disableFogMangement ()
 
Ogre::FogMode getManageSceneFog () const
 Tells if Caelum is managing the fog or not. More...
 
void setManageSceneFogStart (Ogre::Real from)
 
void setManageSceneFogEnd (Ogre::Real to)
 
Ogre::Real getManageSceneFogStart () const
 
Ogre::Real getManageSceneFogEnd () const
 
void setSceneFogDensityMultiplier (Real value)
 Multiplier for scene fog density (default 1). More...
 
Real getSceneFogDensityMultiplier () const
 Get the value set by setSceneFogDensityMultiplier.
 
void setSceneFogColourMultiplier (const Ogre::ColourValue &value)
 Set an additional multiplier for fog colour as it comes from SkyColourModel. More...
 
const Ogre::ColourValue getSceneFogColourMultiplier () const
 See setSceneFogColourMultiplier.
 
void setGroundFogDensityMultiplier (Real value)
 Multiplier for ground fog density (default 1). More...
 
Real getGroundFogDensityMultiplier () const
 Get the value set by setGroundFogDensityMultiplier.
 
void setGroundFogColourMultiplier (const Ogre::ColourValue &value)
 Set an additional multiplier for ground fog colour as it comes from SkyColourModel. More...
 
const Ogre::ColourValue getGroundFogColourMultiplier () const
 See setGroundFogColourMultiplier.
 
void setGlobalFogDensityMultiplier (Real value)
 Multiplier for global fog density (default 1). More...
 
Real getGlobalFogDensityMultiplier () const
 Get the value set by setSceneFogDensityMultiplier.
 
void setGlobalFogColourMultiplier (const Ogre::ColourValue &value)
 Set an additional multiplier for fog colour. More...
 
const Ogre::ColourValue getGlobalFogColourMultiplier () const
 See setGlobalFogColourMultiplier.
 
void setManageAmbientLight (bool value)
 Set this to true to have CaelumSystem manage the scene's ambient light. More...
 
bool getManageAmbientLight () const
 Check if CaelumSystem is managing ambient lighting.
 
void setMinimumAmbientLight (const Ogre::ColourValue &value)
 Set the minimum value for scene ambient lighting, This is only used if getManageAmbientLight() is true. More...
 
const Ogre::ColourValue getMinimumAmbientLight () const
 
void setEnsureSingleLightSource (bool value)
 Ensure only one of caelum's light sources is active at a time (the brightest). More...
 
bool getEnsureSingleLightSource () const
 See setEnsureSingleLightSource.
 
void setEnsureSingleShadowSource (bool value)
 Ensure only one of caelum's light sources casts shadows (the brightest). More...
 
bool getEnsureSingleShadowSource () const
 See setEnsureSingleShadowSource.
 
Ogre::ColourValue getFogColour (Real time, const Ogre::Vector3 &sunDir)
 Gets the fog colour for a certain daytime. More...
 
Real getFogDensity (Real time, const Ogre::Vector3 &sunDir)
 Gets the fog density for a certain daytime. More...
 
Ogre::ColourValue getSunSphereColour (Real time, const Ogre::Vector3 &sunDir)
 Get the colour of the sun sphere. More...
 
Ogre::ColourValue getSunLightColour (Real time, const Ogre::Vector3 &sunDir)
 Gets the colour of sun light. More...
 
Ogre::ColourValue getMoonBodyColour (const Ogre::Vector3 &moonDir)
 Gets the colour of moon's body.
 
Ogre::ColourValue getMoonLightColour (const Ogre::Vector3 &moonDir)
 Gets the colour of moon's light.
 
void setSkyGradientsImage (const Ogre::String &filename=DEFAULT_SKY_GRADIENTS_IMAGE)
 Set the sun gradients image.
 
void setSunColoursImage (const Ogre::String &filename=DEFAULT_SUN_COLOURS_IMAGE)
 Set the sun colours image. More...
 
const Ogre::Vector3 getSunDirection (LongReal jday)
 Get the sun's direction at a certain time. More...
 
const Ogre::Vector3 getMoonDirection (LongReal jday)
 Get the moon's direction at a certain time. More...
 
Ogre::Real getMoonPhase (LongReal jday)
 Function to get the phase of the moon. More...
 
const Ogre::Vector3 getEclipticNorthPoleDirection (LongReal jday)
 Get the ecliptic's north pole direction at a certain time. More...
 
void forceSubcomponentQueryFlags (uint mask)
 Call setQueryFlags for all subcomponents now. More...
 
void forceSubcomponentVisibilityFlags (uint mask)
 Same as. More...
 
- Public Member Functions inherited from Ogre::FrameListener
virtual bool frameEnded (const FrameEvent &evt)
 
virtual bool frameRenderingQueued (const FrameEvent &evt)
 
- Public Member Functions inherited from Ogre::RenderTargetListener
virtual void postRenderTargetUpdate (const RenderTargetEvent &evt)
 
virtual void postViewportUpdate (const RenderTargetViewportEvent &evt)
 
virtual void preRenderTargetUpdate (const RenderTargetEvent &evt)
 
virtual void viewportAdded (const RenderTargetViewportEvent &evt)
 
virtual void viewportRemoved (const RenderTargetViewportEvent &evt)
 

Static Public Attributes

static const String DEFAULT_SKY_GRADIENTS_IMAGE
 
static const String DEFAULT_SUN_COLOURS_IMAGE
 

Protected Member Functions

void attachViewportImpl (Ogre::Viewport *rt)
 
void detachViewportImpl (Ogre::Viewport *rt)
 

Detailed Description

This is the "root class" of caelum.

This class is created once for one SceneManager and will render the sky for that scene. CaelumSystem will be visible in all viewports on the scene and must be notified when those viewports are created and destroyed.

Components

Caelum is built from several classes for different sky elements (the sun, clouds, etc). Those classes know very little about each other and are connected through this class. This class is responsible for tracking and updating sub-components.

This class "owns" all of the subcomponents, using std::auto_ptr members. When you call functions like setXxx(new Xxx()) this class takes ownership of the object's lifetime and will try to update it as appropriate. All components are optional; disable one component should never cause a crash. When something is broken disabling components one by one is a very good way to find the source of the problem.

The constructor can create a bunch of components with default settings for you; based on the CaelumSystem::CaelumComponent flags passed.

Updating

This class is responsible for updating subcomponents. There are two update functions which must be get called to keep CaelumSystem functioning properly. One is per-frame and the other is per-camera.

CaelumSystem::updateSubcomponents must be called once per frame to advance world time and tie components together. That function will set certain properties on the subcomponents making up CaelumSystem If you want to force some properties beyond what CaelumSystem does by default you can do that AFTER the call to updateSubcompoments. For example you can override the moon's phase by calling Moon::setPhase.

CaelumSystem::notifyCameraChanged must be called for each camera before rendering with that camera. All viewport tweaks and camera movement must be done BEFORE calling this function. This method will recenter Caelum's domes on the camera. Also, some subcomponents can actually depend on field-of-view and viewport resolution (like PointStarfield).

You can register CaelumSystem as an Ogre::FrameListener and updateSubcomponents will be automatically called inside Ogre's rendering loop (inside frameStarted). If you want more control you should call updateSubcomponents in your own main loop. That way you can avoid potential issues with the ordering of multiple FrameListeners.

You can register CaelumSystem as an Ogre::RenderTargetListener and notifyCameraChanged will be automatically called inside preViewportUpdate. That behaviour can be disabled with setAutoNotifyCameraChanged(false). It is recommended that you call notifyCameraChanged manually before updating viewports.

RenderTargetListener::preViewportUpdate does not work as expected when compositors are involved (those inside Caelum or external). Compositors plug into preRenderTargetUpdate and render the scene to a texture BEFORE preViewportUpdate; this means that notifyCameraChanged will execute before the final compositor pass but after actual scene rendering.

If notifyCameraChanged is not called correctly the most likely result is "flickering" when moving the camera. If you move the camera AFTER notifyCameraChanged then the domes will not be positioned correctly and will appear to lag slightly after the camera. Since updates are always done every frame keeping the camera still will make problems disappear.

If you notice z-buffer issues while the camera is still update order is probably not the cause.

Member Enumeration Documentation

◆ CaelumComponent

Flags enumeration for caelum components.

This is an enumeration for the components to create by default in Caelum's constructor. You can still pass 0 and create everything by hand.

CaelumSystem's constructor used to take a number of bools but now there are too many components and this is nicer.

CAELUM_COMPONENT_ members are for individual components. CAELUM_COMPONENTS_ are standard bitmasks. CAELUM_COMPONENTS_DEFAULT picks elements that don't require modifications to external materials (right now it excludes ground fog).

Constructor & Destructor Documentation

◆ CaelumSystem()

Caelum::CaelumSystem::CaelumSystem ( Ogre::Root root,
Ogre::SceneManager sceneMgr,
CaelumComponent  componentsToCreate 
)

Constructor.

Registers itself in the Ogre engine and initialises the system.

Parameters
rootThe Ogre root.
sceneThe Ogre scene manager.
componentsToCreateDefault components for
See also
autoConfigure.

Member Function Documentation

◆ clear()

void Caelum::CaelumSystem::clear ( )

Revert everything to defaults.

This function will delete all subcomponents and revert everything to default values (the values which are also set on construction).

◆ autoConfigure()

void Caelum::CaelumSystem::autoConfigure ( CaelumComponent  componentsToCreate)

Create some default component with resonable default settings.

This results in a slightly cloudy morning sky. This will always call clear() before creating components. autoConfigure (0); is equivalent to clear();

◆ shutdown()

void Caelum::CaelumSystem::shutdown ( bool  cleanup)

Shuts down the system and detaches itself from the Ogre engine.

shutdown(true) is equivalent to deleting CaelumSystem yourself. shutdown(false) delays destruction to the next time caelum is called as a frame listener. This makes it safe to shutdown Caelum from inside another frame listener.

Parameters
cleanupIf this is true then detach and destroy the CaelumSystem instantly.

◆ updateSubcomponents()

void Caelum::CaelumSystem::updateSubcomponents ( Real  timeSinceLastFrame)

Update the whole system manually.

You have to call this yourself if you don't register CaelumSystem as an ogre frame listener. Otherwise it's called automatically.

Parameters
timeSinceLastFrameTime passed since last frame.

◆ notifyCameraChanged()

void Caelum::CaelumSystem::notifyCameraChanged ( Ogre::Camera cam)

Notify subcomponents of camera changes.

This function must be called after camera changes but before rendering with that camera. If multiple cameras are used it must be called for each camera before the camera is rendered with.

This function will move caelum's camera node to the camera position, but only if getAutoMoveCameraNode. It will also call CameraBoundElement::notifyCameraChanged

◆ getSceneMgr()

Ogre::SceneManager* Caelum::CaelumSystem::getSceneMgr ( ) const
inline

Get the scene manager for this caelum system.

This is set in the constructor. CaelumSystem can't exist without a valid scene manager.

◆ setAutoNotifyCameraChanged()

void Caelum::CaelumSystem::setAutoNotifyCameraChanged ( bool  value)
inline

If true; listen to preViewportUpdate and automatically notifyCameraChanged();.

This is on by default; but does not work with compositors.

You must attach CaelumSystem as a RenderTargetListener manually for this to work; as in version 0.3.

◆ getAutoNotifyCameraChanged()

bool Caelum::CaelumSystem::getAutoNotifyCameraChanged ( ) const
inline

◆ setAutoAttachViewportsToComponents()

void Caelum::CaelumSystem::setAutoAttachViewportsToComponents ( bool  value)
inline

If true; automatically attach viewports to subcomponents.

Some subcomponents use compositors and those compositors need to be attached to individual viewports. By default CaelumSystem will try take to take care of that automatically.

This property allows you to disable that behaviour. If set to false you must call functions like PrecipitationController::createViewportInstance manually.

See also
attachViewport detachViewport

◆ getAutoAttachViewportsToComponents()

bool Caelum::CaelumSystem::getAutoAttachViewportsToComponents ( ) const
inline

◆ setAutoMoveCameraNode()

void Caelum::CaelumSystem::setAutoMoveCameraNode ( bool  value)
inline

If true (default); automatically move the camera node in notifyCameraChanged.

If disable you get full control of the camera node; and in theory you can attach it to the scene graph however you please.

◆ getAutoMoveCameraNode()

bool Caelum::CaelumSystem::getAutoMoveCameraNode ( )
inline

◆ setAutoViewportBackground()

void Caelum::CaelumSystem::setAutoViewportBackground ( bool  value)
inline

If true; automatically set the viewport color to black.

Caelum's domes relies on the viewport background being black. There's generally no reason to disable this and it's on by default.

◆ getAutoViewportBackground()

bool Caelum::CaelumSystem::getAutoViewportBackground ( ) const
inline

◆ attachViewport()

void Caelum::CaelumSystem::attachViewport ( Ogre::Viewport rt)

Attach CaelumSystem to a viewport.

You should call this for every new viewport looking at the scene where CaelumSystem is created.

If the viewport is already attached then nothing happens.

If getAutoAttachViewportsToComponents() this will add Caelum's compositors.

◆ detachViewport()

void Caelum::CaelumSystem::detachViewport ( Ogre::Viewport rt)

Reverse of.

See also
attachViewport. You need to call this when you destroy a viewport.

If the viewport is not already attached nothing happens.

◆ setManageSceneFog()

void Caelum::CaelumSystem::setManageSceneFog ( Ogre::FogMode  f)

Enables/disables Caelum managing standard Ogre::Scene fog.

This makes CaelumSystem control standard Ogre::Scene fogging. It will use EXP2 fog with density from SkyColourModel.

Fog density multipliers are used; final scene fog density is: SceneMultiplier * GlobalMultiplier * SkyColourModel.GetFogDensity

When this is set to false it also disables all scene fog (but you control it afterwards).

Parameters
valueNew value

◆ getManageSceneFog()

Ogre::FogMode Caelum::CaelumSystem::getManageSceneFog ( ) const

Tells if Caelum is managing the fog or not.

Returns
The value set in setManageSceneFog.

◆ setSceneFogDensityMultiplier()

void Caelum::CaelumSystem::setSceneFogDensityMultiplier ( Real  value)

Multiplier for scene fog density (default 1).

This is an additional multiplier for Ogre::Scene fog density. This has no effect if getManageSceneFog is false.

Final scene fog density is: SceneMultiplier * GlobalMultiplier * SkyColourModel.GetFogDensity

◆ setSceneFogColourMultiplier()

void Caelum::CaelumSystem::setSceneFogColourMultiplier ( const Ogre::ColourValue value)
inline

Set an additional multiplier for fog colour as it comes from SkyColourModel.

This is 0.7 by default; to be compatible with previous versions.

◆ setGroundFogDensityMultiplier()

void Caelum::CaelumSystem::setGroundFogDensityMultiplier ( Real  value)

Multiplier for ground fog density (default 1).

This is an additional multiplier for Caelum::GroundFog DepthComposer ground fog density.

Final ground fog density is: GroundFogMultipler * GlobalMultiplier * SkyColourModel.GetFogDensity

◆ setGroundFogColourMultiplier()

void Caelum::CaelumSystem::setGroundFogColourMultiplier ( const Ogre::ColourValue value)
inline

Set an additional multiplier for ground fog colour as it comes from SkyColourModel.

This is OgreColour::White by default; which has no effect.

◆ setGlobalFogDensityMultiplier()

void Caelum::CaelumSystem::setGlobalFogDensityMultiplier ( Real  value)

Multiplier for global fog density (default 1).

This is an additional multiplier for fog density as received from SkyColourModel. There are other multipliers you can tweak for individual kinds of fog; but this is what you should change from whatever "game logic" you might have.

◆ setGlobalFogColourMultiplier()

void Caelum::CaelumSystem::setGlobalFogColourMultiplier ( const Ogre::ColourValue value)
inline

Set an additional multiplier for fog colour.

This will also affect stuff like clouds or precipitation. Careful! This is OgreColour::White by default; which has no effect.

◆ setManageAmbientLight()

void Caelum::CaelumSystem::setManageAmbientLight ( bool  value)
inline

Set this to true to have CaelumSystem manage the scene's ambient light.

The colour and AmbientMultiplier of the sun and moon are used. This is false by default.

◆ setMinimumAmbientLight()

void Caelum::CaelumSystem::setMinimumAmbientLight ( const Ogre::ColourValue value)
inline

Set the minimum value for scene ambient lighting, This is only used if getManageAmbientLight() is true.

By default this value is Ogre::ColourValue::Black, so it has no effect.

◆ getMinimumAmbientLight()

const Ogre::ColourValue Caelum::CaelumSystem::getMinimumAmbientLight ( ) const
inline

◆ setEnsureSingleLightSource()

void Caelum::CaelumSystem::setEnsureSingleLightSource ( bool  value)
inline

Ensure only one of caelum's light sources is active at a time (the brightest).

This uses SkyLight::setForceDisable to disable low-intensity lightsources. Their contribution to ambient lighting is not affected. This implies a single shadow caster. This is disabled by default; and you can tweak light disabling by yourself.

◆ setEnsureSingleShadowSource()

void Caelum::CaelumSystem::setEnsureSingleShadowSource ( bool  value)
inline

Ensure only one of caelum's light sources casts shadows (the brightest).

Disabled by default.

◆ getFogColour()

Ogre::ColourValue Caelum::CaelumSystem::getFogColour ( Real  time,
const Ogre::Vector3 sunDir 
)

Gets the fog colour for a certain daytime.

Parameters
timeThe current time.
sunDirThe sun direction.
Returns
The fog colour.

◆ getFogDensity()

Real Caelum::CaelumSystem::getFogDensity ( Real  time,
const Ogre::Vector3 sunDir 
)

Gets the fog density for a certain daytime.

Parameters
timeThe current time.
sunDirThe sun direction.
Returns
The fog density.

◆ getSunSphereColour()

Ogre::ColourValue Caelum::CaelumSystem::getSunSphereColour ( Real  time,
const Ogre::Vector3 sunDir 
)

Get the colour of the sun sphere.

This colour is used to draw the sun sphere in the sky.

Returns
The colour of the sun.

◆ getSunLightColour()

Ogre::ColourValue Caelum::CaelumSystem::getSunLightColour ( Real  time,
const Ogre::Vector3 sunDir 
)

Gets the colour of sun light.

This color is used to illuminate the scene.

Returns
The colour of the sun's light

◆ setSunColoursImage()

void Caelum::CaelumSystem::setSunColoursImage ( const Ogre::String filename = DEFAULT_SUN_COLOURS_IMAGE)

Set the sun colours image.

Sun colour is taken from this image.

◆ getSunDirection()

const Ogre::Vector3 Caelum::CaelumSystem::getSunDirection ( LongReal  jday)

Get the sun's direction at a certain time.

Parameters
jdayastronomical julian day.
See also
UniversalClock for julian day calculations.

◆ getMoonDirection()

const Ogre::Vector3 Caelum::CaelumSystem::getMoonDirection ( LongReal  jday)

Get the moon's direction at a certain time.

Parameters
jdayastronomical julian day.

◆ getMoonPhase()

Ogre::Real Caelum::CaelumSystem::getMoonPhase ( LongReal  jday)

Function to get the phase of the moon.

Parameters
jdayJulian day
Returns
the phase of the moon; ranging from 0(full moon) to 1(again full moon).

◆ getEclipticNorthPoleDirection()

const Ogre::Vector3 Caelum::CaelumSystem::getEclipticNorthPoleDirection ( LongReal  jday)

Get the ecliptic's north pole direction at a certain time.

Useful as Moon's north polar axis points within 1.5 degrees of the north ecliptic pole.

Parameters
jdayastronomical julian day.

◆ forceSubcomponentQueryFlags()

void Caelum::CaelumSystem::forceSubcomponentQueryFlags ( uint  mask)

Call setQueryFlags for all subcomponents now.

This is not persistent; you can adjust the query masks of individual objects afterwards. This also means you should call this only after you created all other objects.

Has no effect on compositor-based stuff (precipitation will still show up).

◆ forceSubcomponentVisibilityFlags()

void Caelum::CaelumSystem::forceSubcomponentVisibilityFlags ( uint  mask)

Same as.

See also
forceSubcomponentQueryMask; but for visibility